
Coated SUMIBORON Series Coated SUMIBORON Series, achieving higher speed, efficiency and precision. ■ General Features Using a high heat resistant and tough CBN substrate coupled with a special BNC2010 BNC2020 ceramic coating, this series caters to a wide variety of applications with improved precision and longer tool life as compared to conventional CBN. There is a comprehensive lineup of economical and easy-to-use insert selection, such as the cost effective double-sided, multi-cornered, one-use type inserts. Cutting edge specifications in the Coated SUMIBORON Series have been expanded to deliver performance in high precision machining and burr control. BNC100 BNC160 BNC200 BNC300 BNC500 ■ Characteristics Easy Edge Management Numbering of all the cutting edges. Strong Brazing Utilizing a new brazing method with improved strength. Double sided,Multi-cornered One-use Insert More cost effective than conventional One-use inserts. Special Ceramic Coating and Newly Developed CBN Substrate Provides longer tool life. ■ Cutting Performance ■ Cutting Edge Management Condition Cutting Speed(m/min) Application 100 200 300 400 500 Before use General Purpose BNC2020 BNC2010 L ( Continuous to ( SUMIBORON Light interrupted BNC200 BNC100 Rz = Above 3.2 Finishing Hardened Steel Heavy Interrupted BNC300 After use BNC2010 High Precision (Rz = 1.6 to 3.2) BNC160 BNC2020 High Efficiency (Caburized layer removal) ・The edge numbers are still visible after machining, which BNC200 makes the management of used cutting edges easy. ・BNC2010 and BNC2020 are coated in gold, Cast Iron Ductile Cast Iron BNC500 which makes it easy to distinguish used edges. L3